TY - BOOK AU - Baldwin,Brewster AU - Muehlberger,William R. TI - Geologic studies of Union County, New Mexico: Geology of Union County. Volcanic rocks of Des Moines quadrangle T2 - New Mexico. Bureau of Mines and Mineral Resources. Bulletin AV - TN24.N6 A232 no. 63 PY - 1959/// CY - Socorro PB - State Bureau of Mines and Mineral Resources, New Mexico Institute of Mining & Technology KW - Geology KW - New Mexico KW - Union County KW - Igneous rocks N1 - Part of illustrative matter fold. in pocket; Bibliography: p. [158]-162 ER -